Cultural water demand data including population, number of wells and the average well pumpage and surface water diversions by the municipal, industrial and agricultural sectors are shown in Table 4.9-8. Effluent generation including facility ownership, location, population served and not served, volume treated, disposal method and treatment level is shown in Table 4.9-9. Figure 4.9-10 shows the location of demand centers. A description of cultural water demand data sources and methods is found in Volume 1, Appendix A. More detailed information on cultural water demands is found in Section 4.0.7.For information on gpcd and annual water demand by individual community water systems in this basin see ADWR's Community Water System Program annual water use reporting summary.

Population in this basin has more than doubled since 1980, increasing from 7,245 in 1980 to 17,575 in 2000.

Groundwater use in this basin decreased from 1971-1990. Between 1991-2005 groundwater demand has increased, with an average of 3,700 AFA from 2001-2005.

Most municipal and industrial demand in this basin is in the vicinity of Kingman and around Highway 68 west of Kingman in the Golden Valley unincorporated area.

Although the City of Kingman is located in this basin, the majority of the water for the City comes from well fields located in the Hualapai Valley Basin. Municipal groundwater demand in this basin has, however, increased from an average of 1,500 AFA in 1991-1995 to an average of 2,100 AFA in 2001-2005.

Groundwater demand declines in the 1970s and 1980s can be attributed to the declining use of water by the Mineral Park Mine located south of Chloride.

Industrial groundwater use has increased in recent years from an average of less than 300 AFA in 1991-1995 to an average of 1,600 AFA in 2001-2005.

There is one power plant, Griffith, located in this basin. The Griffith plant opened in 2002 and is located south of Kingman west of Interstate 40.

There are no reported surface water diversions for cultural demand in this basin, however, water is diverted for environmental purposes at Topock Marsh in Havasu National Wildlife Refuge.

As of 2005 there were 1,010 registered wells with a pumping capacity of less than or equal to 35 gallons per minute and 151 wells with a pumping capacity of more than 35 gallons per minute.

Information on population served was available for only one facility and information on effluent generation was available for two facilities. More than 3,500 people are served by these facilities which generate almost 400 acre-feet of effluent per year.

Of the two facilities with information on the effluent disposal method, one discharges to a watercourse and one discharges to an evaporation pond.